Bottle



NQ Enden J. J` DUBKIN Sn E. L. FRITZE.

BOTTLE.

No. 581,814. Patented May 4,1897.

UNITED STATES PATENT OFFICE.

JOHN J. DURKIN AND HENRY L. FRITZE, OF JERSEY CITY, NEWT JERSEY.

BOTTLE.

SPECIFICATION forming part of Letters Patent No. 581,814, dated May 4, 1897.

Application iied March 31,1896. Serial No. 585,543. (No model.

To w whom, it may concern,.-

Be it known that we, JOHN J. DURKIN and HENRY L. FRITZE, citizens of the United States, and residents of Jersey City, in the county of Hudson, State of New Jersey, have invented a new and useful Improvement in Bottles, of which the following is a specification.

Our invention relates to bottles or other liquidholding vessels; and its object is to provide a bottle or like receptacle with improved means for facilitating the expulsion of its contents.

Itis well known that the emptying of liquid from an ordinary bottle is necessarily slow because of the resistance caused by the pressure of the air outside of the bottle.

Our invention comprises the combination, with an air-vent formed in the bottle, of a valve of novel construction.

In the accompanying drawings, Figure l is a central vertical section of a bottle provided with an air-vent in its bottom. Fig. 2 is a vertical sectional view of a portion of a bottle provided with a projection formed integral with the bottle preparatory to forming the air-vent therein. Fig. 3 isa vertical sectional view of a part of a bottle provided with our improved valve. Fig. 4 is a similar view showing the valve provided with a coil-spring, and Figs. 5 and G are views of the valve and valvestein detached.

The reference-numeral 1 indicates the bottle provided with a concave-convex bottom 2, having a central air-vent 3 formed therein, said air-vent being annularly beveled or tapered to form a seat for a conical valve i. XVe preferably form the air-openiu g 3 by blowing a hollow projection 5 in the boit-om of the bottle, as shown in Fig. 2, and then severing the projection at the point indicated by dotted line in Fig. i. This leaves a slightly-projectin g annular flange G around the valve-seat to contact with the outer end of the stem of the valve 4.

The valve i is preferably made of rubber and in the form of an inverted hollow cone, and it is secured to a metallic stein 7. To prefer to secure this stein to the valve by splitting or bifurcating the upper end oi the stem to form prongs 8, which are embedded in the rubber in the process of vulcanizing the latter; but it is obvious that any other suitable fastening may be employed to seen re the valve and stein together and that other substances than rubber may be used in constructing the valve.

The lower or outer end .fl of the valve-stem is divided longitudinally, as shown in Fig. 5, and the arms or prongs thus formed are bent outwardly in opposite directions to form stops l0 to prevent the stem from passing entirely into the bottle.

It will be apparent that the valve as thus described when in place within the air-vent 3 will, bygravity, close the vent, and the pressure of the liquid in the bottle or the gases contained in said liquid will normally hold the valve to its seat. By pressing the valve away from its seat through the stem air is admitted through the vent 3 to the liquid, and the pressure of the air upon the liquid at the mouth of the bottle is thus utilized, and the liquid will flow out freely.

lf desired, a coil spring ll may be applied around the siem 7, one end of the spring bearing against the stops l0 of the stem and the other end against the bottom of the bottle, as shown in Fig. l. This spring tends to hold the valve to its seat, and when the valve is pressed inwardly by the finger the spring is compressed and automatically seats the valve when the finger is removed.

Having thus described our invention, what we desire to claim and secure by Letters Patent isl. The combination with a bottle, or other liquid-holdingr vessel having an air-vent, of a valve seated in said air-vent, anda valve-stein havingiis outer end bifurcated and bent outwardly to form stops.

2. The combination with a bottle or other liquid-holding vessel, having un air-ventatits bottom, of a valve of conical form anda valvestcm provided at one end with prongs embedded in the valve, and at its opposite ends with oppositely-bent arms or prongs.

3. The combination with the bottle having an air-vent in its bottoni, of a valve, avalvestem longitudinally divided at its ends, and a eoil-spring arranged on said stein.

i. The combination with the bottle having an air-vent annularly beveled, of a closure comprising a hollow, rubber valve of conical form, and a valve-stem secured nl one end Lo ln testimony that we claim the foregoing as the valve, and longitudinally divided at its our invention we have signed our names in outer end and oppositely bent, substantially presence of two witnesses.

as shown and described.

5 5. A closure for bottles, comprising :L rn bber valve, n valve-stem longitudinally divided at both its ends, and bent in opposite diroetions, said stein being embedded at one end Witnesses: in the rubber, snbsi'nntinllyas shown and de- B. IEUKHAM,

:o scribed. lniLIr E. MARTIN.

JOHN .l. DURKIN. HENRY L. FRITZE. 

